[gegl] ppm-load: Fix compare between signed and unsigned

[Mukund Sivaraman <muks src gnome org>]

commit 3ffb2ff9f81fcf5673b1a478793ea67ff2d4ba0f
Author: Mukund Sivaraman <muks banu com>
Date:   Wed Jul 28 13:57:02 2010 +0530

    ppm-load: Fix compare between signed and unsigned

 operations/external/ppm-load.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/operations/external/ppm-load.c b/operations/external/ppm-load.c
index efff4c6..5f92486 100644
--- a/operations/external/ppm-load.c
+++ b/operations/external/ppm-load.c
@@ -116,7 +116,7 @@ static void
 ppm_load_read_image(FILE       *fp,
                     pnm_struct *img)
 {
-    gint    i;
+    guint   i;
     gint    retval;
 
     if (img->type == PIXMAP_RAW)